The clinical setting, precipitating factors, electrocardiographic features and response to treatment of 32 patients with torsade de pointes were reviewed. Thirty-one patients had underlying cardiac… (More)

OBJECTIVES
The aim of this study was to determine the independent hemodynamic effects of an irregular sequence of ventricular cycle lengths in patients with atrial fibrillation (AF).
BACKGROUND… (More)

INTRODUCTION
The long-term complications of catheter ablation within the pulmonary veins are unknown. The development of pulmonary vein stenosis has recently been described after catheter ablation to… (More)

Arsenic intoxication is a common form of heavy metal poisoning. Although arsenic-induced circulatory collapse, seizures, and syncope are well known, the potential for serious ventricular arrhythmias… (More)

BACKGROUND
Successful defibrillation by an implantable cardioverter-defibrillator (ICD) depends on its ability to deliver shocks that exceed the defibrillation threshold. This study was designed to… (More)